please include function mechList_raw.

static S mechListOrCreate_raw(S name) ctex {
  lock mechList_raw_lock;
  
  // get from cache
  S src = mechList_raw_cache.get(name);
  if (src != null) ret src;
  
  // load & put in cache
  src = mechListOrCreate_raw_fresh(name);
  mechList_raw_cache.put(name, unnull(src));
  ret src;
}